Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-22-2013, 01:17 AM   #31
Senior Member




Join Date: May 2010
Location: Sydney
Photos: Albums
Posts: 217
QuoteOriginally posted by marcusBMG Quote
To add my penny's worth: this problem is specific to K5, K30 and (my) K-r etc. Without an electrical contact, specifically to the 7th data contact at the half past position, the lens won't stop down and the green button won't work (nor will catch-in focus). It does not occur with K10D, K20D... (= my samsung GX20), the latter will operate eg green button even with no lens mounted. This issue is also commented on here albeit slightly different context
Jessops Auto Extension Tubes PK-A reviews - Pentax Camera Accessory Review Database

I used a dremel bit by hand to take off the anodising and get the 7th contact to connect
Hi. Thanks for your input. As I have experienced, the problem also affects the K7 (I have both of them). Regards.

11-29-2014, 02:58 AM   #32
New Member




Join Date: Apr 2013
Posts: 15
Solution

The last post is correct.
I have a k mount Steinheil 28mm 2.8 non a with an apeture arm.
The body is black anodized.
I rubbed the section where the contacts match up to reveal the metal - and all good.
Optical preview now works.
The aperture arm is a different shape to pentax and I originally thought that was the issue.
Attached Images
View Picture EXIF
GT-I9100  Photo 
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
135mm, aperture, camera, k-5, lens, lenses, mc, moves, pentax help, petri
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nice lens (sample) but adapter does not focus to infinity on K-5 Chazz5 Troubleshooting and Beginner Help 13 02-07-2013 06:44 PM
Aperture problem with cheap old manual lens LarsW Troubleshooting and Beginner Help 12 05-23-2012 01:47 PM
K-X manual mode does not work with Pentax-M 1:3.5 24-35mm FreelancePolice Visitors' Center 2 11-07-2011 06:23 PM
How Well Does the K-5 Focus With Old Manual Focus Lenses? TomBrooklyn Pentax K-5 14 07-21-2011 05:16 AM
K-5 with Sigma lens - Manual focus not working Jyved Troubleshooting and Beginner Help 3 01-10-2011 02:39 PM



All times are GMT -7. The time now is 04:08 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top